// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2007 Michael Olbrich <michael.olbrich@gmx.net>
// Copyright (C) 2006-2010 Benoit Jacob <jacob.benoit.1@gmail.com>
// Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr>
//
// This Source Code Form is subject to the terms of the Mozilla
// Public License v. 2.0. If a copy of the MPL was not distributed
// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.

#ifndef EIGEN_ASSIGN_H
#define EIGEN_ASSIGN_H

namespace Eigen {

template<typename Derived>
template<typename OtherDerived>
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Derived&
DenseBase<Derived>::lazyAssign(const DenseBase<OtherDerived>& other)
{
	enum
	{
		SameType = internal::is_same<typename Derived::Scalar, typename OtherDerived::Scalar>::value
	};

	EIGEN_STATIC_ASSERT_LVALUE(Derived)
	EIGEN_STATIC_ASSERT_SAME_MATRIX_SIZE(Derived, OtherDerived)
	EIGEN_STATIC_ASSERT(
		SameType,
		YOU_MIXED_DIFFERENT_NUMERIC_TYPES__YOU_NEED_TO_USE_THE_CAST_METHOD_OF_MATRIXBASE_TO_CAST_NUMERIC_TYPES_EXPLICITLY)

	eigen_assert(rows() == other.rows() && cols() == other.cols());
	internal::call_assignment_no_alias(derived(), other.derived());

	return derived();
}

template<typename Derived>
template<typename OtherDerived>
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Derived&
DenseBase<Derived>::operator=(const DenseBase<OtherDerived>& other)
{
	internal::call_assignment(derived(), other.derived());
	return derived();
}

template<typename Derived>
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Derived&
DenseBase<Derived>::operator=(const DenseBase& other)
{
	internal::call_assignment(derived(), other.derived());
	return derived();
}

template<typename Derived>
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Derived&
MatrixBase<Derived>::operator=(const MatrixBase& other)
{
	internal::call_assignment(derived(), other.derived());
	return derived();
}

template<typename Derived>
template<typename OtherDerived>
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Derived&
MatrixBase<Derived>::operator=(const DenseBase<OtherDerived>& other)
{
	internal::call_assignment(derived(), other.derived());
	return derived();
}

template<typename Derived>
template<typename OtherDerived>
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Derived&
MatrixBase<Derived>::operator=(const EigenBase<OtherDerived>& other)
{
	internal::call_assignment(derived(), other.derived());
	return derived();
}

template<typename Derived>
template<typename OtherDerived>
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Derived&
MatrixBase<Derived>::operator=(const ReturnByValue<OtherDerived>& other)
{
	other.derived().evalTo(derived());
	return derived();
}

} // end namespace Eigen

#endif // EIGEN_ASSIGN_H
